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Nick Taylor writes:
> Rcvd my pneumatic components yesterday ... and
> am having doubts about their practicality. The smaller
> cylinder and pump (5116 & 5117) are not powerful
> enough to do much of amything of any use.
The small pump makes a fine compressor which lots of us use. I agree that the
small cylinder is not that useful.
The
> larger set (5107 & 5108) have enough power to
> lift and hold a full can of beer ... but powering the
> pump is a problem. The 5225 motor (the one that
> comes with MindStorm) is very difficult to gear ...
> I haven't found an approriate ratio as yet. 1:15 stalls
> the motor when pressure is built-up in the tank, and
> 1:45 never builds sufficient pressure. Need to do
> more playing!
Are you using a pressure limit switch to shut off the compressor? lu posted a
design a while back which I captured on my site. Although I used it with the
design for a compressor that Michael Powell posted which uses the smaller
compressor cylinder, it might work for you.
Surf here:
http://my.voyager.net/lar/pneu.html
which will also lead you here to see the compressor I refered to above:
http://www.sonic.net/~rci/legocompressor.htm
However, I will say that I struggled to put together a multigang compressor for
several days using 4 of the bigger cylinders and could not find an arrangement
of gears that worked for me. That just means I'm not mechanically inclined, not
that it can't be done.
++Lar
======== Posted via the LUGNET discussion group web interface ========
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Message has 2 Replies:
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 | | Re: pneumatics & mindstorms?
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| Rcvd my pneumatic components yesterday ... and am having doubts about their practicality. The smaller cylinder and pump (5116 & 5117) are not powerful enough to do much of amything of any use. The larger set (5107 & 5108) have enough power to lift (...) (26 years ago, 18-Oct-98, to lugnet.robotics, lugnet.build)
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